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CA2172967A1 - Method and device for mixing of a fluid into a pulp-suspension - Google Patents

Method and device for mixing of a fluid into a pulp-suspension

Info

Publication number
CA2172967A1
CA2172967A1 CA002172967A CA2172967A CA2172967A1 CA 2172967 A1 CA2172967 A1 CA 2172967A1 CA 002172967 A CA002172967 A CA 002172967A CA 2172967 A CA2172967 A CA 2172967A CA 2172967 A1 CA2172967 A1 CA 2172967A1
Authority
CA
Canada
Prior art keywords
fluid
pulp
pulp suspension
suspension
reaction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002172967A
Other languages
French (fr)
Other versions
CA2172967C (en
Inventor
Rolf Ekholm
Ulf Jansson
Per Nystrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metso Fiber Karlstad AB
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20391402&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2172967(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2172967A1 publication Critical patent/CA2172967A1/en
Application granted granted Critical
Publication of CA2172967C publication Critical patent/CA2172967C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2722—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with ribs, ridges or grooves on one surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/911—Axial flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/42—Ozonizers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

Process and device for mixing fluid into a pulp suspension of cellulose-containing fibre material, in which the pulp suspension is pumped in through a pump inlet, brought into rotation and, at the desired reaction pressure, mixed with the said fluid while passing through a reaction sector comprising a stator shell, a rotor which is coaxial therewith, and at least one fluid inlet, after which the pulp mixture leaves the reaction sector through a pulp outlet, in which the fluid, via the said fluid inlet, is supplied in the vicinity of the centre of rotating pulp suspension, where the local pressure in the pulp suspension is lower, due to the centrifugal force increasing radially outwards, than the reaction pressure prevailing at the periphery of the pulp suspension.
CA002172967A 1993-10-13 1994-10-04 Method and device for mixing of a fluid into a pulp-suspension Expired - Fee Related CA2172967C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303353-8 1993-10-13
SE9303353A SE501894C2 (en) 1993-10-13 1993-10-13 Method and apparatus for mixing fluid in a pulp suspension
PCT/SE1994/000923 WO1995010350A1 (en) 1993-10-13 1994-10-04 Method and device for mixing of a fluid into a pulp-suspension

Publications (2)

Publication Number Publication Date
CA2172967A1 true CA2172967A1 (en) 1995-04-20
CA2172967C CA2172967C (en) 2004-12-14

Family

ID=20391402

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002172967A Expired - Fee Related CA2172967C (en) 1993-10-13 1994-10-04 Method and device for mixing of a fluid into a pulp-suspension

Country Status (12)

Country Link
US (3) US5711852A (en)
EP (1) EP0723475B1 (en)
JP (1) JP3676806B2 (en)
AT (1) ATE187659T1 (en)
AU (1) AU7952294A (en)
CA (1) CA2172967C (en)
DE (1) DE69422187T2 (en)
ES (1) ES2142472T3 (en)
FI (1) FI117191B (en)
PT (1) PT723475E (en)
SE (1) SE501894C2 (en)
WO (1) WO1995010350A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506435C2 (en) * 1995-04-19 1997-12-15 Kvaerner Pulping Tech Apparatus for mixing a first fluid into a second fluid
DE10158449C1 (en) * 2001-11-30 2003-12-24 Wedeco Umwelttechnologie Gmbh Method and device for compressing ozone-containing gas for ozone pulp bleaching
FR2840546B1 (en) * 2002-06-07 2005-02-25 Atofina METHOD FOR MIXING CONTENT DYNAMICALLY AT LEAST TWO FLUIDS AND MICROMELANGER
SE524466E (en) * 2002-12-12 2007-09-04 Metso Paper Inc Apparatus for mixing a gaseous or liquid chemical medium with a pulp suspension
SE524465E (en) * 2002-12-12 2007-09-04 Metso Paper Inc Apparatus for mixing a gaseous or liquid medium with a pulp suspension
US7418832B2 (en) * 2003-10-21 2008-09-02 William R Ferrono Portable mister for adjusting ambient temperature
AT414244B (en) 2004-05-13 2006-10-15 Andritz Ag Maschf METHOD AND DEVICE FOR THE MIXTURE OF SUBSTANCES
DE202005013008U1 (en) * 2005-08-16 2005-11-10 Intec Bielenberg Gmbh & Co Kg Mixer and dispenser for two-component adhesives has housing at its base which contains mixing chamber, mixer head mounted on motor-driven shaft being mounted so that it can be raised and lowered in chamber
US7858898B2 (en) * 2007-01-26 2010-12-28 Lam Research Corporation Bevel etcher with gap control
RU2503491C1 (en) * 2012-07-05 2014-01-10 Федеральное государственное образовательное учреждение высшего профессионального образования "Пензенская государственная сельскохозяйственная академия" Mixer of mineral fuel and vegetable oil with active drive
RU2582700C1 (en) * 2014-12-24 2016-04-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновская государственная сельскохозяйственная академия имени П.А. Столыпина" Mixer-batcher for vegetable oils and mineral diesel
JP7382318B2 (en) * 2018-07-05 2023-11-16 日本スピンドル製造株式会社 Slurry manufacturing equipment and slurry manufacturing method
RU2688859C1 (en) * 2018-07-24 2019-05-22 федеральное государственное бюджетное образовательное учреждение высшего образования "Пензенский государственный аграрный университет" Mixer of mineral fuel and vegetable oil with active drive
CN109267413B (en) * 2018-10-26 2023-09-26 华南理工大学 A method and device for preparing oxygen-based high-efficiency clean and bleached pulp

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US881888A (en) * 1907-02-04 1908-03-17 William H Atwood Digester.
SE303088B (en) * 1963-05-31 1968-08-12 Defibrator Ab
US3411721A (en) * 1966-09-02 1968-11-19 Ingersoll Rand Canada Refining and screening apparatus
SE316363B (en) * 1966-12-01 1969-10-20 Karlstad Mekaniska Ab
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
SE419603B (en) * 1979-11-27 1981-08-17 Kamyr Ab APPLICATION FOR MIXING TREATMENT AGENTS IN SUSPENSIONS
SU1139781A1 (en) * 1983-04-15 1985-02-15 Хабаровский политехнический институт Apparatus for chemiothermal treatment of cellulose-containing material
US4577974A (en) * 1984-05-04 1986-03-25 Kamyr, Inc. Medium consistency mixer rotor and stator construction
EP0230427A1 (en) * 1985-07-22 1987-08-05 Weyerhaeuser Company Double sided mixer
US4842690A (en) * 1986-05-27 1989-06-27 Kamyr, Inc. Mixing chlorine gas into paper pulp slurries
US5405497A (en) * 1990-08-28 1995-04-11 Kamyr, Inc. Method of chemically reacting a liquid with a gas in a vortex
SE468341C (en) * 1991-03-20 1997-08-04 Kvaerner Pulping Tech Apparatus for mixing a suspension of a cellulosic fibrous material and a fluid
FI95821B (en) * 1991-10-18 1995-12-15 Ahlstroem Oy Method and apparatus for admixing gas in a medium and the process of bleaching process
US5863120A (en) * 1997-01-31 1999-01-26 Beloit Technologies, Inc. Medium consistency liquid mixture

Also Published As

Publication number Publication date
SE9303353D0 (en) 1993-10-13
AU7952294A (en) 1995-05-04
JPH09503828A (en) 1997-04-15
CA2172967C (en) 2004-12-14
DE69422187D1 (en) 2000-01-20
WO1995010350A1 (en) 1995-04-20
PT723475E (en) 2000-05-31
ES2142472T3 (en) 2000-04-16
ATE187659T1 (en) 2000-01-15
FI961608A0 (en) 1996-04-12
FI961608A7 (en) 1996-04-12
US6156159A (en) 2000-12-05
EP0723475B1 (en) 1999-12-15
EP0723475A1 (en) 1996-07-31
JP3676806B2 (en) 2005-07-27
SE9303353L (en) 1995-04-14
DE69422187T2 (en) 2000-08-17
SE501894C2 (en) 1995-06-12
US5711852A (en) 1998-01-27
US6241852B1 (en) 2001-06-05
FI117191B (en) 2006-07-31

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